235 lines
6.7 KiB
YAML
235 lines
6.7 KiB
YAML
---
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# Copyright 2015, Rackspace US, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Adding additional sshd configuration options is usually easy, but if a
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# configuration file ends with certain configurations, like a "Match" stanza,
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# we need a blank line to separate those configurations from the ones that
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# are added by the security role. For that reason, we check for the existence
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# of a marker line here and add a marker line to the file if it doesn't exist.
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- name: Check for security role marker in sshd_config
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command: "grep '^# openstack-ansible-security configurations' /etc/ssh/sshd_config"
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register: sshd_marker_check
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changed_when: False
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always_run: True
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failed_when: False
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tags:
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- ssh
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# Check for "Match" stanzas in the sshd_config.
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- name: Check for Match stanzas in sshd_config
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command: "grep '^Match' /etc/ssh/sshd_config"
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register: sshd_match_check
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changed_when: False
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always_run: True
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failed_when: False
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tags:
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- ssh
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# If the marker is missing, and "Match" stanzas are present, we must carefully
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# add a marker line above any "Match" stanzas in the configuration file. This
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# is done by finding the first match with sed and then adding a marker
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# line above it.
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- name: Add security role marker with sed above Match stanza
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shell: |
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sed -i '0,/^Match/s/^Match/\n# openstack-ansible-security configurations\n\n&/' /etc/ssh/sshd_config
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when:
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- sshd_marker_check.rc != 0
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- sshd_match_check.rc == 0
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tags:
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- ssh
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# If the marker is missing, but there are no "Match" stanzas present, we can
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# simply add the security role marker to the bottom of the sshd_config.
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- name: Add security role marker to the end of the sshd_config
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lineinfile:
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dest: /etc/ssh/sshd_config
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line: "\n# openstack-ansible-security configurations"
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state: present
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insertbefore: EOF
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validate: '/usr/sbin/sshd -T -f %s'
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when:
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- sshd_marker_check.rc != 0
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- sshd_match_check.rc != 0
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tags:
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- ssh
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- name: V-38484 - User must get date/time of last successful login
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?PrintLastLog'
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line: 'PrintLastLog yes'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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notify:
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- restart ssh
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tags:
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- ssh
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- cat2
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- V-38484
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- name: V-38607 - The SSH daemon must be configured to use only the SSHv2 protocol
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?Protocol \d'
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line: 'Protocol 2'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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notify:
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- restart ssh
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tags:
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- ssh
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- cat1
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- V-38607
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- name: V-38614 - The SSH daemon must not allow authentication using an empty password
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?PermitEmptyPasswords'
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line: 'PermitEmptyPasswords no'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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notify:
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- restart ssh
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tags:
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- ssh
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- cat1
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- V-38614
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- name: V-38612 - The SSH daemon must not allow host-based authentication
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?HostbasedAuthentication'
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line: 'HostbasedAuthentication no'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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notify:
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- restart ssh
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tags:
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- ssh
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- cat2
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- V-38612
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- name: V-38608 - Set a timeout interval for idle ssh sessions
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?ClientAliveInterval'
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line: 'ClientAliveInterval {{ security_ssh_client_alive_interval }}'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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notify:
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- restart ssh
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tags:
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- ssh
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- cat2
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- V-38608
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- name: V-38610 - Set a timeout count on idle ssh sessions
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?ClientAliveCountMax'
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line: 'ClientAliveCountMax {{ security_ssh_client_alive_count_max }}'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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notify:
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- restart ssh
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tags:
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- ssh
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- cat2
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- V-38610
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- name: V-38611 - The sshd daemon must ignore .rhosts files
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?IgnoreRhosts'
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line: 'IgnoreRhosts yes'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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notify:
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- restart ssh
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tags:
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- ssh
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- cat2
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- V-38611
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- name: V-38613 - The ssh daemon must not permit root logins
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?PermitRootLogin'
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line: 'PermitRootLogin {{ security_ssh_permit_root_login }}'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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notify:
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- restart ssh
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tags:
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- ssh
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- cat2
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- V-38613
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- name: Copy the login banner for sshd (for V-38615)
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copy:
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src: login_banner.txt
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dest: /etc/issue.net
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tags:
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- ssh
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- cat2
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- V-38615
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- name: V-38615 - The ssh daemon must display a login banner
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?Banner'
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line: 'Banner /etc/issue.net'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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tags:
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- ssh
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- cat2
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- V-38615
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- name: V-38616 - The ssh daemon must not permit user environment settings
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?PermitUserEnvironment'
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line: 'PermitUserEnvironment no'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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tags:
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- ssh
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- cat3
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- V-38616
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- name: V-38617 - The ssh daemon must be configured to use approved ciphers
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lineinfile:
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state: present
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dest: /etc/ssh/sshd_config
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regexp: '^(#)?Ciphers'
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line: 'Ciphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,3des-cbc,aes192-cbc,aes256-cbc'
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insertafter: "^# openstack-ansible-security configurations"
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validate: '/usr/sbin/sshd -T -f %s'
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tags:
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- ssh
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- cat2
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- V-38617
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